Description

Try this cheesy, flavorful Chicken Fajita Casserole—packed with veggies and spice! A quick, family-friendly dinner everyone will crave.

Ingredients

For the Casserole:

1½ lbs boneless, skinless chicken breasts, thinly sliced

1 red bell pepper, sliced

1 yellow bell pepper, sliced

1 green bell pepper, sliced

1 medium red onion, sliced

2 tablespoons olive oil

1 packet fajita seasoning (or homemade – see below)

1 cup sour cream

1½ cups shredded cheddar or Mexican blend cheese

1 cup shredded Monterey Jack cheese

1 teaspoon garlic powder

Salt and pepper to taste

1 tablespoon lime juice

Optional Homemade Fajita Seasoning:

1 tsp chili powder

1 tsp cumin

½ tsp paprika

½ tsp garlic powder

½ tsp onion powder

½ tsp oregano

¼ tsp cayenne (optional)

Instructions

Step 1: Prep and Sauté

Preheat oven to 375°F (190°C).

Heat olive oil in a large skillet over medium-high heat. Add chicken and sprinkle with fajita seasoning. Cook until just browned (about 4–5 minutes).

Add bell peppers and onions. Cook until slightly tender, about 5 minutes more.

Step 2: Mix the Casserole

Remove skillet from heat. Stir in sour cream, lime juice, garlic powder, salt, and pepper.

Transfer everything to a greased 9×13-inch baking dish.

Step 3: Top and Bake

Sprinkle cheeses evenly over the top.

Bake uncovered for 20–25 minutes, until cheese is bubbly and golden.

Step 4: Garnish and Serve

Let it sit for 5–10 minutes before serving.

Garnish with chopped cilantro, sliced green onions, or a squeeze of lime.

Notes

Add carbs: Layer cooked rice or tortilla strips at the bottom.
Low-carb version: Skip tortillas or rice altogether.
Swap the protein: Try steak, ground beef, or shrimp.
Extra veggies: Add corn, black beans, or zucchini.

Keywords: chicken fajita casserole, cheesy casserole, baked fajitas, easy chicken dinner, tex mex bake, low carb casserole, make ahead meal, family dinner, creamy chicken bake, mexican casserole